The slant height and base diameter of a conical tomb are 25 m and 14 m respectively. Find the cost … surface at the rate of ₹210…
Answers:
Radius of the base of the conical tomb (r) = 14/2 m = 7 m
Slant height of conical tomb (l) = 25 m
Curved surface area of conical tomb = πrl = 22/7 x 7 x 25 = 550 m2
Cost of white-washing 1 m2 = ₹ 210/100 = ₹ 2.1
∴ Cost of white-washing 550 m2 = ₹ 550 x 2.1 = ₹ 1155
rupees 1155 is the answer